18207215

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{743}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 24507360

約数和(自身を除く): 6300145

約数列:

[1, 5, 13, 29, 65, 145, 169, 377, 743, 845, 1885, 3715, 4901, 9659, 21547, 24505, 48295, 107735, 125567, 280111, 627835, 1400555, 3641443, 18207215]

約数ペア:

[(1, 18207215), (5, 3641443), (13, 1400555), (29, 627835), (65, 280111), (145, 125567), (169, 107735), (377, 48295), (743, 24505), (845, 21547), (1885, 9659), (3715, 4901)]